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            <small>
              <a href="#Procedure">Procedure<br></a>
              <a href="#Abstract">Abstract<br></a>
              <a href="#Required_Reading">Required_Reading<br></a>
              <a href="#Keywords">Keywords<br></a>
              <a href="#Brief_I/O">Brief_I/O<br></a>
              <a href="#Detailed_Input">Detailed_Input<br></a>

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              <small>               <a href="#Detailed_Output">Detailed_Output<br></a>
              <a href="#Parameters">Parameters<br></a>
              <a href="#Exceptions">Exceptions<br></a>
              <a href="#Files">Files<br></a>
              <a href="#Particulars">Particulars<br></a>
              <a href="#Examples">Examples<br></a>

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              <small>               <a href="#Restrictions">Restrictions<br></a>
              <a href="#Literature_References">Literature_References<br></a>
              <a href="#Author_and_Institution">Author_and_Institution<br></a>
              <a href="#Version">Version<br></a>
              <a href="#Index_Entries">Index_Entries<br></a>
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<h4><a name="Procedure">Procedure</a></h4>
<PRE>
   void vupack_c ( ConstSpiceDouble     v[3],
                   SpiceDouble        * x,
                   SpiceDouble        * y,
                   SpiceDouble        * z     ) 

</PRE>
<h4><a name="Abstract">Abstract</a></h4>
<PRE>
 
   Unpack three scalar components from a vector. 
 </PRE>
<h4><a name="Required_Reading">Required_Reading</a></h4>
<PRE>
 
   None. 
 </PRE>
<h4><a name="Keywords">Keywords</a></h4>
<PRE>
 
   VECTOR 
 

</PRE>
<h4><a name="Brief_I/O">Brief_I/O</a></h4>
<PRE>
 
   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   v          I   3-vector.
   x, 
   y, 
   z          O   Scalar components of 3-vector. 
</PRE>
<h4><a name="Detailed_Input">Detailed_Input</a></h4>
<PRE>
 
   v           is a double precision 3-vector.
 </PRE>
<h4><a name="Detailed_Output">Detailed_Output</a></h4>
<PRE>
 
   x, 
   y, 
   z           are the scalar components of the 3-vector v.  On output,
               the following equalities hold:
 
                  x = v[0]
                  y = v[1]
                  z = v[2] 
</PRE>
<h4><a name="Parameters">Parameters</a></h4>
<PRE>
 
   None. 
 </PRE>
<h4><a name="Exceptions">Exceptions</a></h4>
<PRE>
 
   Error free. 
 </PRE>
<h4><a name="Files">Files</a></h4>
<PRE>
 
   None. 
 </PRE>
<h4><a name="Particulars">Particulars</a></h4>
<PRE>
 
   Basically, this is just shorthand notation for the common 
   sequence 

      x = v[0];
      y = v[1];
      z = v[2] ;

   The routine is useful largely for two reasons. First, it 
   reduces the chance that the programmer will make a &quot;cut and 
   paste&quot; mistake, like 

      x = v[0];
      y = v[0];
      z = v[0]; 

   Second, it makes conversions between equivalent units simpler, 
   and clearer. For instance, the sequence 

      x = v[0] * <a href="rpd_c.html">rpd_c</a>(); 
      y = v[1] * <a href="rpd_c.html">rpd_c</a>();
      z = v[2] * <a href="rpd_c.html">rpd_c</a>();

   can be replaced by the (nearly) equivalent sequence 

      <a href="vscl_c.html">vscl_c</a>   ( <a href="rpd_c.html">rpd_c</a>(),  v,   v  ); 
      <b>vupack_c</b> ( v,  &amp;x,  &amp;y,  &amp;z  ); 
</PRE>
<h4><a name="Examples">Examples</a></h4>
<PRE>
 
   See: Detailed_Description. 
 </PRE>
<h4><a name="Restrictions">Restrictions</a></h4>
<PRE>
 
   None. 
 </PRE>
<h4><a name="Literature_References">Literature_References</a></h4>
<PRE>
 
   None. 
 </PRE>
<h4><a name="Author_and_Institution">Author_and_Institution</a></h4>
<PRE>
   
   N.J. Bachman    (JPL)
   I.M. Underwood  (JPL) 
 </PRE>
<h4><a name="Version">Version</a></h4>
<PRE>
 
   -CSPICE Version 1.0.0, 07-NOV-2006 (NJB)

      Corrected header errors that claimed this routine
      performs the function of <a href="vpack_c.html">vpack_c</a>.

   -CSPICE Version 1.0.0, 28-JUN-1999 (IMU) (NJB)
</PRE>
<h4><a name="Index_Entries">Index_Entries</a></h4>
<PRE>
 
   unpack three scalar components from a vector 
 </PRE>
<h4>Link to routine vupack_c source file <a href='../../../src/cspice/vupack_c.c'>vupack_c.c</a> </h4>

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   <pre>Wed Jun  9 13:05:33 2010</pre>

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